Home Cautionary Road Signs Which symbol shows “Hump or Rough Road”? Driving EducationCautionary Road Signs Which symbol shows “Hump or Rough Road”? By admin - August 16, 2022 179 0 FacebookTwitterPinterestWhatsApp Sometimes there is a hump on road either intentionally created for slowing the traffic or caused by any other reason. This sign cautions the driver that he should reduce the speed to cross the hump comfortably.